Marketable Securities

9 Months Ended

Sep. 30, 2016

Investments, Debt and Equity Securities [Abstract]

Marketable Securities [Text Block]

Marketable Securities

	September 30, 2016						December 31, 2015
	Cost		Unrealized Gain (Loss)		Fair Value		Cost		Unrealized Gain (Loss)		Fair Value
U.S. government securities	$	34	$	—	$	34	$	38	$	—	$	38
Corporate securities	42				42		42				42
Certificates of deposit	24				24		18				18
Other	26				26		62		2		64
Total marketable securities	$	126	$	—	$	126	$	160	$	2	$	162

U.S. government securities include bonds issued by government-sponsored agencies and Treasury notes. Corporate securities are primarily debt securities. Other consists of investments in mutual and index funds. U.S. government securities, corporate debt and certificates of deposit maturing in one year or less, after one year through five years and after five years through ten years total $41, $48 and $11 at September 30, 2016.